--- a/src/FOLP/ex/intro.ML Thu Apr 07 09:24:35 2005 +0200
+++ b/src/FOLP/ex/intro.ML Thu Apr 07 09:25:33 2005 +0200
@@ -12,7 +12,7 @@
*)
-(**** SOME simple backward proofs ****)
+(**** Some simple backward proofs ****)
goal FOLP.thy "?p:P|P --> P";
by (rtac impI 1);